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csutil/digest.h
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00001 /*
00002   Copyright (C) 2011 by Frank Richter
00003 
00004   This library is free software; you can redistribute it and/or
00005   modify it under the terms of the GNU Library General Public
00006   License as published by the Free Software Foundation; either
00007   version 2 of the License, or (at your option) any later version.
00008 
00009   This library is distributed in the hope that it will be useful,
00010   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00012   Library General Public License for more details.
00013 
00014   You should have received a copy of the GNU Library General Public
00015   License along with this library; if not, write to the Free
00016   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_CSUTIL_DIGEST_H__
00020 #define __CS_CSUTIL_DIGEST_H__
00021 
00026 #include "csutil/csstring.h"
00027 #include "csutil/hash.h"
00028 
00029 namespace CS
00030 {
00031   namespace Utility
00032   {
00033     namespace Checksum
00034     {
00036       struct CS_CRYSTALSPACE_EXPORT DigestFormat
00037       {
00039         static csString HexString (const uint8* data, uint size);
00041         static csString HEXString (const uint8* data, uint size);
00042       };
00043       
00047       template<uint Size>
00048       class Digest : protected DigestFormat
00049       {
00050       public:
00051         enum { DigestLen = Size };
00053         uint8 data[DigestLen];
00055         csString HexString() const
00056         { return DigestFormat::HexString (data, Size); }
00058         csString HEXString() const
00059         { return DigestFormat::HEXString (data, Size); }
00060         
00061         bool operator==(const Digest& other) const
00062         { return memcmp (data, other.data, sizeof (data)) == 0; }
00063         bool operator!=(const Digest& other) const
00064         { return memcmp (data, other.data, sizeof (data)) != 0; }
00065       };
00066     } // namespace Checksum
00067   } // namespace Utility
00068 } // namespace CS
00069 
00070 template<uint Size>
00071 class csHashComputer<CS::Utility::Checksum::Digest<Size> > : 
00072   public csHashComputerStruct<CS::Utility::Checksum::Digest<Size> > {};
00073 
00074 template<uint Size>
00075 class csComparator<CS::Utility::Checksum::Digest<Size> > : 
00076   public csComparatorStruct<CS::Utility::Checksum::Digest<Size> > {};
00077 
00078 #endif // __CS_CSUTIL_DIGEST_H__

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